[LTP] [PATCH] fix rpc_suite/rpc:add check returned value

[James Dong (董世江)]

Hi Petr
I think this is just a simple test of some APIs, but some test cases are not standardized and cause errors like "Segmentation fault" during testing. I think it is necessary to fix these errors or delete these tests.

Kind regards,
Dong

-----邮件原件-----
发件人: Petr Vorel [mailto:pvorel@suse.cz] 
发送时间: 2021年6月21日 15:59
收件人: James Dong (董世江) <dongshijiang@inspur.com>
抄送: ltp@lists.linux.it; Alexey Kodanev <aleksei.kodanev@bell-sw.com>; Steve Dickson <SteveD@redhat.com>; libtirpc-devel@lists.sourceforge.net; linux-nfs@vger.kernel.org
主题: Re: [LTP] [PATCH] fix rpc_suite/rpc:add check returned value

Hi all,

[Cc libtirpc ML and Steve]

> "Segmentation fault (core dumped)" due to the failure of svcfd_create 
> during the rpc test, so you need to check the return value of the 
> "svcfd_create" function

I'm not sure what is the value of TI-RPC tests. IMHO really messy code does not in the end cover much of libtirpc functionality. That's why I'm thinking to propose deleting whole testcases/network/rpc/rpc-tirpc/. libtirpc is being used in nfs-utils, thus it'd deserve to have some testing, but IMHO this should be libtirpc.

I'm not planning to dive into the technology to understand it enough be able to written the tests from scratch and I'm not aware of anybody else planning it.

> Signed-off-by: dongshijiang <dongshijiang@inspur.com>
> ---
>  .../rpc/rpc_createdestroy_svc_destroy/rpc_svc_destroy.c      | 5 +++++
>  .../rpc_createdestroy_svc_destroy/rpc_svc_destroy_stress.c   | 5 +++++
>  .../rpc/rpc_regunreg_xprt_register/rpc_xprt_register.c       | 5 +++++
>  .../rpc/rpc_regunreg_xprt_unregister/rpc_xprt_unregister.c   | 5 +++++
>  4 files changed, 20 insertions(+)

> diff --git 
> a/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_created
> estroy_svc_destroy/rpc_svc_destroy.c 
> b/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_created
> estroy_svc_destroy/rpc_svc_destroy.c
> index 60b96cec3..3557c0068 100644
> --- 
> a/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_created
> estroy_svc_destroy/rpc_svc_destroy.c
> +++ b/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_cre
> +++ atedestroy_svc_destroy/rpc_svc_destroy.c
> @@ -46,6 +46,11 @@ int main(void)

>  	//First of all, create a server
>  	svcr = svcfd_create(fd, 0, 0);
> +
> +	//check returned value
> +	if ((SVCXPRT *) svcr == NULL) {
> +		return test_status;
> +	}

>  	//Then call destroy macro
>  	svc_destroy(svcr);
> diff --git 
> a/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_created
> estroy_svc_destroy/rpc_svc_destroy_stress.c 
> b/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_created
> estroy_svc_destroy/rpc_svc_destroy_stress.c
> index ecd145393..5a4331f4d 100644
> --- 
> a/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_created
> estroy_svc_destroy/rpc_svc_destroy_stress.c
> +++ b/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_cre
> +++ atedestroy_svc_destroy/rpc_svc_destroy_stress.c
> @@ -55,6 +55,11 @@ int main(int argn, char *argc[])
>  	//First of all, create a server
>  	for (i = 0; i < nbCall; i++) {
>  		svcr = svcfd_create(fd, 0, 0);
> +
> +		//check returned value
> +		if ((SVCXPRT *) svcr == NULL)
> +			continue;
> +		svcr = NULL;
man svc_destroy(3) states that it deallocates private data structures, including xprt itself.

Kind regards,
Petr

>  		//Then call destroy macro
>  		svc_destroy(svcr);
> diff --git 
> a/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_regunre
> g_xprt_register/rpc_xprt_register.c 
> b/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_regunre
> g_xprt_register/rpc_xprt_register.c
> index da3b93022..de4df15f1 100644
> --- 
> a/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_regunre
> g_xprt_register/rpc_xprt_register.c
> +++ b/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_reg
> +++ unreg_xprt_register/rpc_xprt_register.c
> @@ -48,6 +48,11 @@ int main(void)

>  	//create a server
>  	svcr = svcfd_create(fd, 1024, 1024);
> +
> +	//check returned value
> +	if ((SVCXPRT *) svcr == NULL) {
> +		return test_status;
> +	}

>  	//call routine
>  	xprt_register(svcr);
> diff --git 
> a/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_regunre
> g_xprt_unregister/rpc_xprt_unregister.c 
> b/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_regunre
> g_xprt_unregister/rpc_xprt_unregister.c
> index d0b7a20d4..fbaec25ad 100644
> --- 
> a/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_regunre
> g_xprt_unregister/rpc_xprt_unregister.c
> +++ b/testcases/network/rpc/rpc-tirpc/tests_pack/rpc_suite/rpc/rpc_reg
> +++ unreg_xprt_unregister/rpc_xprt_unregister.c
> @@ -52,6 +52,11 @@ int main(int argn, char *argc[])

>  	//create a server
>  	svcr = svcfd_create(fd, 1024, 1024);
> +
> +	//check returned value
> +	if ((SVCXPRT *) svcr == NULL) {
> +		return test_status;
> +	}

>  	xprt_register(svcr);
>  	//call routine